Description

If I create a survey, with ezsurvey, and add a multiple choice question.
After voting and submitting the survey I get the following notice

"Undefined index: module in /var/www/apache2php53/ezp5/app/ezpublish_testsystem/.run/extension/ezsurvey/datatypes/ezsurvey/ezsurveytype.php on line 419"

Steps:

Setup Survey

1. Login into admin2 interface, using admin account
2. Click on "Survey", from the top menu
3. Click "Automatic" button
4. Click "Next" button
5. Click "Create new" button
6. Click "Content structure" in top menu
7. Create a folder named "Survey data"
8. Click "Survey" in top menu
9. Click "Browse" button
10. Click "Content structure" in top menu
11. Select "Survey data" and click Select button
12. Click "Next" button

Create Survey

1. Click "Content structure" in top menu
2. Create a new Survey
Name : test survey
Create new attribute "Single/Multiple Choice"
Text of question : Color
Rendring style : Radio buttons in a row
Option label : "Red", Value:1, Order:1
Option label : "Blue", Value:2, Order:2
Option label : "Green", Value:3

3. Click "Send for publishing"
4. Validate that the survey now got published
5. Click the "Preview" bar below the top menu
6. Click on link to "test survey"
7. Click on radio button for "Green"
8. Click "Submit" button